<?php 

//变量的赋值传值赋值
// $v="xuebingsi";
// var_dump($v);
// $name="xuebingsinihao";
// var_dump($name);
// echo"$name";
// 传址赋值
// 
// $a=1;
// $b=&$a;
// $a=7;
// echo"$b";



 ?>
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
 <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en">
 <head>
 	<meta http-equiv="Content-Type" content="text/html;charset=UTF-8">
 	<title>Document</title>
 </head>
 <body>
 <form action="./index.php" method="post">
 	<input type="text" name="username"/>
 	<input type="password" name="password"/>
 	<input type="submit" value="登录"/>
 </form>
 	
 </body>
 </html>